In general the base load operating pattern of the nu­clear stations limits the opportunity to gain experience of start-up and shutdown procedures so that the op­erators may. remain familiar with possible operational malfunctions, low probability accident conditions, and abnormal operating situations. This problem is em­phasised by the increasing degree of automatic control being included, particularly on the AGR stations. The Three Mile Island incident emphasised the necessity of operating staff being continually updated with the problems of safe plant operation during recovery from various accident and malfunction situations. In order to ensure that operating staff are regularly updated, they are required to satisfactorily complete a period of revision training every two years following their initial appointment. The revision training is a one week course arranged with the purpose of ensuring that the operating procedures for safe and efficient op­eration during start-up, shutdown, fuel changing, ab­normal and accident conditions are regularly reviewed and fully understood.

Plant familiarisation

This training follows the introduction course and takes place at the station over a period of at least four to six weeks. The pattern of training will vary according to individual needs and will be determined by the station manager, taking into account the post involved and the individual’s previous experience and perfor­mance. It is regarded as an extension of the formal training programme, and to ensure the necessary con­tinuity the engineer is required to complete a written report. The report is agreed between the Nuclear Power Training Centre (NPTC) and the station. Ty­pically it may cover some part of the station plant, such as control rod systems, reactor safety systems, reactor control, or cooling pond management.